JEE Main 2022 (Online) 25th June Evening Shift

Paper was held on
Sat, Jun 25, 2022 9:30 AM

## Chemistry

The minimum energy that must be possessed by photons in order to produce the photoelectric effect with platinum metal is

View Question At 25$$^\circ$$C and 1 atm pressure, the enthalpy of combustion of benzene (I) and acetylene (g) are $$-$$ 3268 kJ mol$$

View Question Solute A associates in water. When 0.7 g of solute A is dissolved in 42.0 g of water, it depresses the freezing point by

View Question The Ksp for bismuth sulphide (Bi2S3) is 1.08 $$\times$$ 10$$-$$73. The solubility of Bi2S3 in mol L$$-$$1 at 298 K is :

View Question Match List I with List II
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View Question The correct order of electron gain enthalpies of Cl, F, Te and Po is

View Question Given below are two statements.
Statement I : During electrolytic refining, blister copper deposits precious metals.
Sta

View Question Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : The

View Question The correct order of reduction potentials of the following pairs is
A. Cl2/Cl$$-$$
B. I2/I$$-$$
C. Ag+/Ag
D. Na+/Na
E. L

View Question The number of bridged oxygen atoms present in compound B formed from the following reactions is
Pb(NO3)2 $$\buildrel {67

View Question The metal ion (in gaseous state) with lowest spin-only magnetic moment value is :

View Question Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Pol

View Question Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : A m

View Question During halogen test, sodium fusion extract is boiled with concentrated HNO3 to

View Question Amongst the following, the major product of the given chemical reaction is

View Question In the given reaction
'A' can be

View Question Which of the following conditions or reaction sequence will NOT give acetophenone as the major product?

View Question The major product formed in the following reaction, is

View Question Which of the following ketone will NOT give enamine on treatment with secondary amines? [where t-Bu is $$-$$C(CH3)3]

View Question An antiseptic dettol is a mixture of two compounds 'A' and 'B' where A has 6$$\pi$$ electrons and B has 2$$\pi$$ electro

View Question A protein 'A' contains 0.30% of glycine (molecular weight 75). The minimum molar mass of the protein 'A' is __________ $

View Question A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06:00 am when the temperature is 27$$^\circ

View Question Amongst BeF2, BF3, H2O, NH3, CCl4 and HCl, the number of molecules with non-zero net dipole moment is ____________.

View Question At 345 K, the half life for the decomposition of a sample of a gaseous compound initially at 55.5 kPa was 340 s. When th

View Question A solution of Fe2(SO4)3 is electrolyzed for 'x' min with a current of 1.5 A to deposit 0.3482 g of Fe. The value of x is

View Question Consider the following reactions:
PCl3 + H2O $$\to$$ A + HCl
A + H2O $$\to$$ B + HCl
The number of ionisable protons pre

View Question Amongst FeCl3.3H2O, K3[Fe(CN)6] and [Co(NH3)6]Cl3, the spin-only magnetic moment value of the inner-orbital complex that

View Question The Novolac polymer has mass of 963 g. The number of monomer units present in it are

View Question How many of the given compounds will give a positive Biuret test ____________ ?
Glycine, Glycylalanine, Tripeptide, Biur

View Question The neutralization occurs when 10 mL of 0.1M acid 'A' is allowed to react with 30 mL of 0.05 M base M(OH)2. The basicity

View Question ## Mathematics

Let $$A = \{ x \in R:|x + 1|

View Question Let a, b $$\in$$ R be such that the equation $$a{x^2} - 2bx + 15 = 0$$ has a repeated root $$\alpha$$. If $$\alpha$$ and

View Question Let z1 and z2 be two complex numbers such that $${\overline z _1} = i{\overline z _2}$$ and $$\arg \left( {{{{z_1}} \ove

View Question The system of equations
$$ - kx + 3y - 14z = 25$$
$$ - 15x + 4y - kz = 3$$
$$ - 4x + y + 3z = 4$$
is consistent for all

View Question $$\mathop {\lim }\limits_{x \to {\pi \over 2}} \left( {{{\tan }^2}x\left( {{{(2{{\sin }^2}x + 3\sin x + 4)}^{{1 \over 2

View Question The area of the region enclosed between the parabolas y2 = 2x $$-$$ 1 and y2 = 4x $$-$$ 3 is

View Question The coefficient of x101 in the expression $${(5 + x)^{500}} + x{(5 + x)^{499}} + {x^2}{(5 + x)^{498}} + \,\,.....\,\, +

View Question The sum 1 + 2 . 3 + 3 . 32 + ......... + 10 . 39 is equal to :

View Question Let p be the plane passing through the intersection of the planes $$\overrightarrow r \,.\,\left( {\widehat i + 3\wideha

View Question A circle touches both the y-axis and the line x + y = 0. Then the locus of its center is :

View Question Water is being filled at the rate of 1 cm3 / sec in a right circular conical vessel (vertex downwards) of height 35 cm a

View Question If $${b_n} = \int_0^{{\pi \over 2}} {{{{{\cos }^2}nx} \over {\sin x}}dx,\,n \in N} $$, then

View Question If $$y = y(x)$$ is the solution of the differential equation $$2{x^2}{{dy} \over {dx}} - 2xy + 3{y^2} = 0$$ such that $$

View Question If the angle made by the tangent at the point (x0, y0) on the curve $$x = 12(t + \sin t\cos t)$$, $$y = 12{(1 + \sin t)^

View Question The value of 2sin (12$$^\circ$$) $$-$$ sin (72$$^\circ$$) is :

View Question A biased die is marked with numbers 2, 4, 8, 16, 32, 32 on its faces and the probability of getting a face with mark n i

View Question The negation of the Boolean expression (($$\sim$$ q) $$\wedge$$ p) $$\Rightarrow$$ (($$\sim$$ p) $$\vee$$ q) is logicall

View Question If the line $$y = 4 + kx,\,k > 0$$, is the tangent to the parabola $$y = x - {x^2}$$ at the point P and V is the vertex

View Question The value of $${\tan ^{ - 1}}\left( {{{\cos \left( {{{15\pi } \over 4}} \right) - 1} \over {\sin \left( {{\pi \over 4}}

View Question The line y = x + 1 meets the ellipse $${{{x^2}} \over 4} + {{{y^2}} \over 2} = 1$$ at two points P and Q. If r is the ra

View Question Let $$A = \left( {\matrix{
2 & { - 2} \cr
1 & { - 1} \cr
} } \right)$$ and $$B = \left( {\matrix{
{ - 1}

View Question Let $$f(x) = \left[ {2{x^2} + 1} \right]$$ and $$g(x) = \left\{ {\matrix{
{2x - 3,} & {x

View Question The value of b > 3 for which $$12\int\limits_3^b {{1 \over {({x^2} - 1)({x^2} - 4)}}dx = {{\log }_e}\left( {{{49} \over

View Question If the sum of the co-efficient of all the positive even powers of x in the binomial expansion of $${\left( {2{x^3} + {3

View Question If the mean deviation about the mean of the numbers 1, 2, 3, .........., n, where n is odd, is $${{5(n + 1)} \over n}$$,

View Question Let $$\overrightarrow b = \widehat i + \widehat j + \lambda \widehat k$$, $$\lambda$$ $$\in$$ R. If $$\overrightarrow a

View Question The total number of three-digit numbers, with one digit repeated exactly two times, is ______________.

View Question Let $$f(x) = |(x - 1)({x^2} - 2x - 3)| + x - 3,\,x \in R$$. If m and M are respectively the number of points of local mi

View Question Let the eccentricity of the hyperbola $${{{x^2}} \over {{a^2}}} - {{{y^2}} \over {{b^2}}} = 1$$ be $${5 \over 4}$$. If t

View Question Let l1 be the line in xy-plane with x and y intercepts $${1 \over 8}$$ and $${1 \over {4\sqrt 2 }}$$ respectively, and l

View Question ## Physics

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Two

View Question Two buses P and Q start from a point at the same time and move in a straight line and their positions are represented by

View Question A disc with a flat small bottom beaker placed on it at a distance R from its center is revolving about an axis passing t

View Question A solid metallic cube having total surface area 24 m2 is uniformly heated. If its temperature is increased by 10$$^\circ

View Question A copper block of mass 5.0 kg is heated to a temperature of 500$$^\circ$$C and is placed on a large ice block. What is t

View Question The ratio of specific heats $$\left( {{{{C_P}} \over {{C_V}}}} \right)$$ in terms of degree of freedom (f) is given by :

View Question For a particle in uniform circular motion, the acceleration $$\overrightarrow a $$ at any point P(R, $$\theta$$) on the

View Question Two metallic plates form a parallel plate capacitor. The distance between the plates is 'd'. A metal sheet of thickness

View Question Two cells of same emf but different internal resistances r1 and r2 are connected in series with a resistance R. The valu

View Question Given below are two statements :
Statement I : Susceptibilities of paramagnetic and ferromagnetic substances increase wi

View Question A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number

View Question A sinusoidal voltage V(t) = 210 sin 3000 t volt is applied to a series LCR circuit in which L = 10 mH, C = 25 $$\mu$$F a

View Question The electromagnetic waves travel in a medium at a speed of 2.0 $$\times$$ 108 m/s. The relative permeability of the medi

View Question The interference pattern is obtained with two coherent light sources of intensity ratio 4 : 1. And the ratio $${{{I_{\ma

View Question A light whose electric field vectors are completely removed by using a good polaroid, allowed to incident on the surface

View Question A proton, a neutron, an electron and an $$\alpha$$ particle have same energy. If $$\lambda$$p, $$\lambda$$n, $$\lambda$$

View Question Which of the following figure represents the variation of $${l_n}\left( {{R \over {{R_0}}}} \right)$$ with $${l_n}A$$ (i

View Question Identify the logic operation performed by the given circuit:

View Question Match List I with List II
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View Question If n represents the actual number of deflections in a converted galvanometer of resistance G and shunt resistance S. The

View Question For $$z = {a^2}{x^3}{y^{{1 \over 2}}}$$, where 'a' is a constant. If percentage error in measurement of 'x' and 'y' are

View Question A curved in a level road has a radius 75 m. The maximum speed of a car turning this curved road can be 30 m/s without sk

View Question A block of mass 200 g is kept stationary on a smooth inclined plane by applying a minimum horizontal force F = $$\sqrt{x

View Question Moment of Inertia (M.I.) of four bodies having same mass 'M' and radius '2R' are as follows:
I1 = M.I. of solid sphere a

View Question Two satellites S1 and S2 are revolving in circular orbits around a planet with radius R1 = 3200 km and R2 = 800 km respe

View Question When a gas filled in a closed vessel is heated by raising the temperature by 1$$^\circ$$C, its pressure increases by 0.4

View Question 27 identical drops are charged at 22V each. They combine to form a bigger drop. The potential of the bigger drop will be

View Question The length of a given cylindrical wire is increased to double of its original length. The percentage increase in the res

View Question In a series LCR circuit, the inductance, capacitance and resistance are L = 100 mH, C = 100 $$\mu$$F and R = 10 $$\Omega

View Question In an experiment of CE configuration of n-p-n transistor, the transfer characteristics are observed as given in figure.

View Question